Types of Manometer
Manometer is a device which is used for measuring pressure of fluid, which is flowing through pipes and channels. Manometer is indirect type of measuring devices that means some calculation have to do for pressure value. There are different types of manometer as follow.
- Simple manometer
Simple manometer consists of glass tube, which is connected to point where pressure is to be measure and other end of tube is open to atmosphere. There are two types of simple manometer and they are as follow.
Piezometer is the simplest type of manometer and it is used for measuring gauge (above atmospheric) pressure. It consist a simple tube which is connected at a point where pressure is to be measure and other end is open to atmosphere.
- U-tube manometer
U-Tube manometer consists of U shape tube, which is connected to point where pressure is to be measure and other end is open to atmosphere and tube contains manometric liquid. These all arrangement helps to measure gauge and vacuum (above and below atmospheric) pressure.
- Differential manometer
Differential manometers are use for measuring the difference of pressure between two points of same pipe or two different pipes. There are two types of differential manometer and these are as follow.
- U-Tube differential manometer
U-Tube differential manometer consists of U shape tube, in which both ends are either connected at different points of same pipe or two different pipes. U tube contains manometric liquid, which is used to find height value.
- Inverted U-Tube differential manometer
Inverted U-Tube differential manometer consist an inverted U-Tube, in which both ends are either connected at different points of same pipe or two different pipes. U tube contains manometric liquid, which is used to find height value. It is used for measuring difference of low fluid pressures.
- Micro manometer
Micro manometers are modified from above discussed types of manometer. Construction of micro manometer is same as above discussed manometer but one change is that it consists a reservoir. In simple manometer one reservoir is introduce and in differential manometer two reservoirs are introduces. Due to this reservoir manometer become very sensitive and accurate.